Type-writing machine.



TYPE WRTPNG MACEKNB.

MPLIGATWN FILM) JUNEf, 19m 1,1%),976.

Patented Die@ 15, M A.

J. A. RONGHETTI.

PE WMTINQ MA GHXNE.

LD JUNE 5, lQOB. RHRBWED HAY f4. 1914.

Patented nec. 1mm

4 SHEETBMSHBET 3y hmmm Patented Dec. i5

UN ITED Sfiiyris JOSEPH ALBERT RONHETTI, OF NONSOCKET, RH

ASSIGNMENTS, TO THE NOISI'LLESS TYPEWRITER COMPANY, OF MID CONNECTICUT, A CORYGRTON OF CONNECTICUT.

TYPE-WRITING MACHINE.

Application filed June 5. 1908.

To all L/wni if ,ii/1y #olivo/'fi Bc il known Limi. 1. .lim-:ru A. hoNiiiiirrI.

:i Snlijoci of thc King of Italy. residing :it vloonmi'lv'iL in tlw iroiniv oii lroviiloni'i anni ritiro ol' lllioilo isliznii.. lime. inv'iniifl .irirlziin final nral'iil linproriiiiiniz in 'Typo-ll 'iting ilui'liinis. o'` vvliiuli tine. following" is :i lilll. i'loiir. :ind vxn-.t ilirsi'zripion; suoli :iry \\ill eniilili otliorf; L* liil 'in tlic :i to wliiil it .ippvrtnins to iniilt. :mil n tfno saine. l

L'llliis invnntion i'olntos to tliait class o` tvpvvvritinyf inniliinos vilwroin the L vpey can rit-ii; :iw pzoviiliil nitli two or more typoq nnil whiroin tlw plzit'fn is ni'irinzillv lie-lil in pofsiiion to rum-'n0 imprints from ono ol' 'ilii` :nul ilnf plcitiii lining; iiilziiivil'i' -rliil`izililv to onolili the? l:it tor-lo riiiiw iiiiprinls" from tha` otl or not or sots oi" type.

i Uno of lli olijwts ol' tlm present invoir tion is: lo proviilil iniproi iii niinn; for lilitin;r tlii plritvn to positionr; nl, onli-cibiili of n nornnil ii'intrzil i-iosilion. so ne. to ennlilv llw suino to rvi'civ@ iinprvssions from :inv onil of tin-iw typos inoiintefil iipoii @urli type bnr.

nxnotliui olrioi't tliireol is to provide ninipli unil lli .i"nil\." opi i'riiir inwinr; l'oi' sliii'i 'iliix riii'r i fsiiil: ilnii.. .vliili, ilio pinion i1 always loi'lziwl :and iii' lii-lil in :i noriiial i'viitrol poa'ation. ilw 'muy ingr inni-ins will not in :inv xii-:o

olivioiis a'peccation of Letters Patent.

Serial No. 436.753. Rene PATENT OFFICE.

ODE ISLAND, ASSIGNOR, BY MESNB DLETOWN,

Patented Dec. 15. 1914.

wed May i4. i914 serial No. 838,617.

embodiments of in)v invention, Figure l is :rpiiin vieiv oi the platen carriage sliiftingr iniaixliiinisni. thiVl carriage und associated piiiih: ot tlio nini-.linie living omitted in the int'rost of learnt-sis of illustration:

Fig. 2

isi :i sectional viiw tiilien triinsvcrsclv of tlm inurliine on linol iwi. Fig. Il. tlio sliii'ting niiiwlninisni living slioivn in elevation:

l-"i;;. il is :i rciir elevation. lookingr tlio i'ig'lit liiinil vievv Milton oil side of Fig. il: Fig. line -l--l of Fig. 25. looking;r in tlio ilircftion of the. arrow; Fig.

tow :1rd 4 is i fragmentary vien' of one of tlie. locking dvvii'es l'or :i sliil't lever. in :i position different from tliiit {lic-.V \icn of lli@ lower portion of tli` niQni slimvi; in Fig. Zi. allowing onev shift liners in :i iloprcsscd Vig. T i5 :i viivv ol' :i portion oiE llio niuin slionn in Fig. 5.). :ind illiistriit positions ussiiiiiiid b v tln: piii'ts vvl pliitcii iiirrizini' the parts being' l ,l1own in whirli :ire sliov'n in Fig. 3; Fig. (3 is ii sido position: :1nd

mocha-- ing thi, inn the limi,l liv-0n sliiltoil inlnviirillv from ita noriiizil inicriiiciliziti position.

Hiiniliir wiwi-nov iliiiriiifttrs refer tlf l v i ons lo tin drawings. vvliorvin ploil to liv` projootiiil iigiiinst :i conniion printing pointy iipon tliif plntiii. 'vifiiiioniillv nl, l. 'l`liC typo lmrnzintl oni livin vlirirm'ii-rs :inil :iro projected to tliv ic pi vs nii. :irc prov'iiloil vvilli tlirvv tvpi` impression points ol' tlw platen b v Silit-nhl@ :lutin ming iowliiinisin not shown liorcin.

'in tliil prosint instiini'o. :i pliitin mii-ring@j i wlin` 'pinten i. poiliil iI. it its rear portion ngi vxtvniling menilisr or roil. 7 vvliivli iixtonil4 loro nnil :ift

of tliil iiiniliiiio :inil is :iiiilioi'oil in tlii front vviill thor/vof 'o v nimins not sliovvn lim-viii.

liv-roll livin" Oiiiiloil :nifl sii i orteil nii-.itli bwl 2 in n vvny i* :inil living;4 also snp-y l iiponv fi vvi'v or sliilv provn'iml por'ioil :it

upon ilii :sii'lo .vzill of tlii iinn'liini.

lio iiiovoil forniiril or iol T is :irlzipliil to izwlmiiril to ilizingv tlw position siiiil iinilvrscrew 68, is a link '70 which is similarly attached at 71 to a second link 72. Link 72 is rotatively mounted at 73 upon an adjustable eccentric 74 which is clamped, as by means of a clamp-screw 75, in a bracket formed upon the framework of the machine. Eccentric 74.may be adjusted to any desired position in said bracket and clamped in said position by means of screw 75, as will be understood. Lever 25 is similarly connected by links 77 and 78 pivotally connected at 80 lto an adjustable eccentric which is adapted to be adjusted in a support 82 and clamped therein, as by means of a clamp screw 83.V Retractile springs 84 and 85 are connected with links 70 and 77, respectively said springs being attached at their other ends, as at 86 and 87, with the swinging lever 25. These springs tend to flex the links and hold them in the position shown in Fig. 3 of the drawings. Whenever lever `25 is swung through its connection with lthe shift mechanism to lift or depress the platen carriage, one pair of these links will straighten, as shown in Fig. 7 of the drawings, and when said links have been moved into alinement, as shown, the swinging lever will have reached itslimit of movement, and said lever and the associated parts will, therefore, be arrested without impact or con eussion and, therefore, noiselessly.

rlhe platen carriage is balanced, in the present embodiment of my invention, by means of a full elliptic spring 88 which is positioned beneath the lever 9.5 and attached to a depending portion 90 of rod 18, said v`spring being supported upon an adjusting screw 91 threaded in afbracket formed upon the framing of the machine. The tension of -this spring is such that the carriage will normally be heldin central position,-

but may be readily moved in either direction from such position when the same is shifted.

Having thus described this embodiment of my invention, the operation thereof may now be understood. Assuming the parts to be in normal position, as shown in Fig. 2 of the drawings, a depression of either of the shift keys 58 or (it) will first, as above described, move the blocking spring from iin derneath the abutment formed upon the shift lever, thereby allowing a free depression ofthe shift lever, the other shift lever remaining in locked position, and the pivotal connection thereof with a lioating lever p2/forming a stationary fulcrnm upon which lsaid limiting lever swings under compulsion of the lever being depressed. The swinging of lloating lever 3Q will cause lever to swing upward or downward in accordance with the i'iarticular shift lever depressed,

and, through rod 18, cause a corresponding movement of the platen, such movementyas above described, being limited by the straightening of theV toggle comprised by either pair of pivotally connected links. The platen in either of its shifted positions is returned to normal position by means of spring 47, attached to the floating lever 32, which also operates to return the shift levers to their normal position against stop 48.

It vill acebr'dii'igly be seen that I have provided mechanism well adapted to attain,

the shifting movements of the carriage here# in is of simple construction and performs its functions without any impact or concussion and, therefore, without the production of noise. ,K

As many changes could be made in the above construction and many apparently widely dilferent embodiments of this invention could beinade without departing from l the scope thereof, it is intended that all mat ter contained in the above description or: shown in the accompanying drawings shall be interpreted as illustrative and not in a limiting sense.

It is also to be understood that the hmlguage used in the following claims is intended to cover all of the generic and specie features of the invention herein `described and all statements of the scope of the invention which, as a matter of language, might be said to fall therebetween'.

Having .described my invention, what I claim as new and desire to secure by Letters Patent is :H

l.. 1n a typewriting machine, the combination with a, platen shiftable in opposite directions from a normal intermediate position, of a double armed lever connected therewith, and a pair 'of shift levers interposed betweeii said double armed lever, each of which has :i'giivotal connect-ion therewith and is adapted imiove the saine in a dii-ertioii opposite to that ln which it is moved by the other, whereby the platen may be shifted in opposite ,diriietioiis from its nori,

vmal printing position,

2. ln a typewritmg machine, the eonibiiiation with i pilaten shifta'ble in apposite directions froid a normal intenti'iediate position, of a lever comprising a pair of connected spaced members connected with the platen, a pair of shift levers interposed between tlie members of said firstaueiitioiual lever, each of which has a pivotal connertion therewith and is adapted'to swing the Same in a direction opposite to that in which ll OV it is shifted b v the other thereof, whereby the platen may be shifted in opposite directions from its normal printing position, and

means for restoring the platen to normal poof shift levers for raising or depressing the platen to other printing positions, and a donble lever common to both of said shift levers and having a portion disposed at either side of said shift levers, said double lever being pivotally connected to each of said shift i levers, connected with the platen and adapted to raise or depress the saine in aoc-ordance with the particular shift lever depressed.` i

5. In a typewritingmachine, the combina tion with a shiftable platen norn'ially held in'an intermediate printing: position, of a pair of shift levers, a lever having-a portion to swing upon its pivotal connection withv w vone of said shift levers as a f ulcrum to shift theplaten in one direction from. its initial position when the other shift lever is depressed and to swing uponv its pivotal connection with the second lever as a vfulcriim 7:

when the first lever is depressed, whereby the platen will be shifted in another direction. l

9. In a typewriting machine, the'conibination with a shiftable laten, of a Adu lex lever connected therewith and adapte -to shift the saine in opposite directions from an intermediate printing position, and a pair of shift levers interposed .between the niembers of said duplex lever, each of which'is pivotally connected to the members of said lever at a different point in the length o'f said lever, the pivots connecting said lever with the shift levers acting asv stationary filler-unis or as points of application ofvv power to swing said lever, whereby Athe platen will be shifted in a direction dependent upon the particular shift'lever depressed.

10. In a typewriting machine, the combination with a shiftable 'platen adapted nor- 95 malle to rest in an intermediate printing l position, of a duplex lever connected there# disposed at either side of said shift, levers and Connected at ditlerent points with each r of said shift levers, and means for erinnerting- .said lever with the. platen, said lever hcing adapted to swingnpon either of its points of adjustment with the shift. levers as a fiilcruin to shift the platen to either side ofl its normal position. I

(i. In a typeivritinpr machine, the eomhination with a shiftahle platen normally held in an intermediate printing position. of a pair of .shift levers` and a lever having a portion disposed at either .sido of said shift.-

` levers with which both of said shift leve-rs are pivot alli1 connected at different. points in tinl length thereof, said lever hein;r ennnerted with the plate,v the pivotal connerftion of said lever with one of said shift levers operating as a statioiuirv fnlerinn when the other of said shift'levers is depressed.

7. ln a t`\ 'pe\viitinl machine, the combina tion with a shiflahle platen, of n pair of shift levers. ain-la lever comprising a pair` of spaced connected members pivoiall)Y connected at a different point in ils ler vth with each of said .shift levers and 'also connected with the pl:iteiisaid lever heilig adapted to swing upon either of its points of renne@ tionavith the shift levers as a fiilcriini when the other of said shift, levers is depressed.

8. Tn a typewl'itiner machine., the combina tion with a shit'tahle platen. of a pair of shift levers, and a duplex lever having a with, a shift lever interposed between the members of said duplex lever and pivotally attached thereto, and @Second lever intr- 10o g posed between the members' of said duplevA -lever and pivotall)v attachedthereto at a different point in its length, the pivotal connection of one of said levers operating as a stationary fuleium about which said level' 105 swings when the other shift. lever is depressed to shift the platen. i

l1. in a typewriting machine, the combination with a shiftable plat-en'adapteci to he shifted' to either side of anormal print- 11o ing position for upper or lower case printing, of a pair of shift levers, a lever pivot ally connected tol cach of said shift levers and having a connection with the platen, and

a spring in'en'iber for holding;r .one of said 115 ,shift levers stationary when the other `is de.` pressed. whereby the pivotal connection with the lever connected therewith operates as a stationary fiileriim vupon which the latter swings to shiftthe platen.

12. 'ln a typewriting machine, the combination with a. platen adapted'to he shifted tol either side of a normal printing posit-ion for Upper or lower casing printing, of a pair of shift levers, a leverv pivotallw-eon- 12,5`

neeted to each of said shift levers and havingv a connection with the platen, and a .spring-locking member interposed in the path ot earl! of said shift levers and adapted to hold the saine stationary during a depres- 1.30z

iii mp5. ,i

liiily l() tln 1;, lo mgl, Suid Spring 70 lin-lung nn'nih inn! inwitin @fune in :i

mahnilmg in lll. 1H 1, @Vini nation All n mzxmiiw, L? 1 mm" WN@ pintan carriage whine; @gw

imm

juin

= n (gocen-- :mh [uur 2.25

fram'- 

